gistfile1.rb

require 'rubygems'

dependencies = <<-EOS
rack 0.9.1
activesupport >= 2.2.2
daemons >= 1.0.10
djanowski-workling
djanowski-collage >= 0.1.3
faker >= 0.3.1
fiveruns-memcache-client >= 1.5.0
haml >= 2.0.5
json >= 1.1.3
mmangino-facebooker >= 1.0.12
postgres >= 0.7.9
quietbacktrace >= 0.1.1
riddle ~> 0.9.8
rr >= 0.6.0
sequel >= 2.8.0
sinatra 0.9.1
soveran-spawner >= 0.0.4
term-ansicolor
thoughtbot-shoulda >= 2.0.6
EOS

missing = []

dependencies.each_line do |line|
  next unless line =~ /^([\w\-_]+) ?(.*)?$/

  name, version = $1, $2

  version = nil if version.empty?

  vendor_name = name.dup
  vendor_name << "-#{version[/([\d\.]+)$/, 1]}" if version
  vendor_path = File.join(File.dirname(__FILE__), 'vendor', "#{vendor_name}*", 'lib')

  if vendor_path = Dir[vendor_path].first
    # Vendored gem
    puts "Vendored gem #{name} #{version} in #{vendor_path}" if $0 == __FILE__
    $:.unshift(vendor_path)
  else
    # RubyGems
    begin
      gem(*[name, version].compact)
    rescue Gem::LoadError => e
      $stderr.puts "=> #{e.message}"
      missing << [name, version]
    end
  end
end

missing.each do |spec|
  puts "sudo gem install #{spec[0]} #{('-v %s ' % spec[1][/([0-9\.]+)$/] if spec[1])}--no-rdoc --no-ri"
end